Mac Armstrong - 15 Jul 2026 Form 4 Insider Report for Palomar Holdings, Inc. (PLMR)

Reporting relationship: CEO and Chairman, Director
Issuer ticker: PLMR
Reported as of: 15 Jul 2026
Net transaction value: -$7,997,160
SEC form: 4
Accepted by SEC: 17 Jul 2026, 16:15:23 UTC
Prior SEC filing: 24 Jun 2026
Next SEC filing: 22 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Angela Grant, Attorney-in-Fact

Key filing fact

Mac Armstrong filed Form 4 for Palomar Holdings, Inc. (PLMR) on 17 Jul 2026.

Key facts

This page summarizes Mac Armstrong's Form 4 filing for Palomar Holdings, Inc. (PLMR).
6 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 17 Jul 2026, 16:15.

Change

Previous filing in this sequence was filed on 24 Jun 2026.
Current net transaction value: -$7,997,160.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001772383 Primary reporting owner

Armstrong Mac

Relationship: CEO and Chairman, Director
Address: 7979 IVANHOE AVENUE, SUITE 500, LA JOLLA
Signature: /s/ Angela Grant, Attorney-in-Fact
Signature date: 17 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

PLMR transaction

Common Stock (RSUs)

Options Exercise

Transaction value
Shares: +6,250
Change %: +6.1%
Price: $0.000000^*
Shares after: 108,309
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1

PLMR transaction

Common Stock (RSUs)

Sale

Transaction value: $420,917
Shares: -3,197
Change %: -3%
Price: $131.66
Shares after: 105,112
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F2

PLMR transaction

Common Stock (PSUs)

Options Exercise

Transaction value
Shares: +112,500
Change %: +107%
Price: $0.000000^*
Shares after: 217,612
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F3, F4

PLMR transaction

Common Stock (PSUs)

Sale

Transaction value: $7,576,243
Shares: -57,544
Change %: -26%
Price: $131.66
Shares after: 160,068
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1, F5

PLMR holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 102,059
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1

PLMR holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 329,388
Date: 15 Jul 2026
Ownership: By Armstrong Family Trust

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

PLMR transaction Derivative

Restricted Stock Units (RSUs)

Options Exercise

Transaction value
Shares: -6,250
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 15 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 6,250
Exercise price: $0.000000
Footnotes: F6

PLMR transaction Derivative

Performance Share Units (PSUs)

Options Exercise

Transaction value
Shares: -112,500
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 15 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 112,500
Exercise price: $0.000000
Footnotes: F7

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 7 footnotes

Footnote F1

Includes 2,754 shares purchased pursuant to the Palomar Holdings, Inc. 2019 Employee Stock Purchase Plan (ESPP).

Footnote F2

Represents shares automatically sold by the Company on behalf of the Reporting Person pursuant to a mandatory sell-to-cover provision in the RSU award agreement required to cover minimum statutory tax withholding obligations that became due upon the RSU vesting event.

Footnote F3

Represents the vesting date of previously granted performance stock unit ("PSU") awards, which vested based on the applicable per-share market price thresholds having been achieved and the grantee completing the required service period through such date.

Footnote F4

Represents the number of shares determined to have been earned and vested from a previously granted PSU award. The PSU award was granted on 7/15/2021 and the number of shares that vested was based on achievement of the applicable per-share market price thresholds and the grantee completing the required service period through 7/15/2026.

Footnote F5

Represents shares automatically sold by the Company on behalf of the Reporting Person pursuant to a mandatory sell-to-cover provision in the PSU award agreement required to cover minimum statutory tax withholding obligations that became due upon the PSU vesting event.

Footnote F6

The original RSU grant was for 125,000 shares on 7/15/2021. Subject to the Reporting Person's continuing service with the Company, the RSUs shall vest as follows: 25,000 shares shall vest on the first year anniversary of the Grant Date/Vesting Base Date; 25,000 shares shall vest on the second year anniversary of the Grant Date/Vesting Base Date; 25,000 shares shall vest on the third year anniversary of the Grant Date/Vesting Base Date; after the third anniversary of the Grant Date/Vesting Base Date, 6,250 shares shall vest on a quarterly basis thereafter, until fully vested.

Footnote F7

The original PSU grant was for 225,000 shares on 7/15/2021, vesting in eight equal installments, of which four installments (112,500 shares) vested as reported in this Form 4 and the remaining four installments (112,500 shares) were forfeited as described below. Subject to the Reporting Person's continuing service with the Company as an Employee and/or Director of the Issuer and the achievement of the applicable per-share market price threshold for each individual installment, the PSUs shall vest on July 15, 2026. If the applicable market price thresholds have not been achieved by July 15, 2026 or such earlier date that the Reporting Person ceases to be an Employee before December 31, 2025 or ceases to be either an Employee or a Director (or both) before the fifth anniversary of the Grant Date/Vesting Start Date, all unvested PSUs will be forfeited.